13086661 has 8 divisors (see below), whose sum is σ = 14978304. Its totient is φ = 11200560.

The previous prime is 13086659. The next prime is 13086673. The reversal of 13086661 is 16668031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13086661 - 2¹ = 13086659 is a prime.

It is a super-2 number, since 2×13086661² = 342521392257842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13086631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (1872288).

Almost surely, 2^13086661 is an apocalyptic number.

It is an amenable number.

13086661 is a deficient number, since it is larger than the sum of its proper divisors (1891643).

13086661 is a wasteful number, since it uses less digits than its factorization.

13086661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13086661 is about 3617.5490321487. The cubic root of 13086661 is about 235.6547967065.

The spelling of 13086661 in words is "thirteen million, eighty-six thousand, six hundred sixty-one".